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14 <div id=Content><div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="OpenLayers.Handler.RegularPolygon"></a>OpenLayers.<wbr>Handler.<wbr>RegularPolygon</h1><div class=CBody><p>Handler to draw a regular polygon on the map. Polygon is displayed on mouse down, moves or is modified on mouse move, and is finished on mouse up. The handler triggers callbacks for ‘done’ and ‘cancel’. Create a new instance with the <a href="#OpenLayers.Handler.RegularPolygon.OpenLayers.Handler.RegularPolygon" class=LConstructor id=link18 onMouseOver="ShowTip(event, 'tt18', 'link18')" onMouseOut="HideTip('tt18')">OpenLayers.Handler.RegularPolygon</a> constructor.</p><h4 class=CHeading>Inherits from</h4><ul><li><a href="../Handler-js.html#OpenLayers.Handler" class=LClass id=link19 onMouseOver="ShowTip(event, 'tt19', 'link19')" onMouseOut="HideTip('tt19')">OpenLayers.Handler</a></li></ul><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr class="SMain"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon" >OpenLayers.<wbr>Handler.<wbr>RegularPolygon</a></td><td class=SDescription>Handler to draw a regular polygon on the map. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.Properties" >Properties</a></td><td class=SDescription></td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.sides" >sides</a></td><td class=SDescription>{Integer} Number of sides for the regular polygon. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.radius" >radius</a></td><td class=SDescription>{Float} Optional radius in map units of the regular polygon. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.snapAngle" >snapAngle</a></td><td class=SDescription>{Float} If set to a non-zero value, the handler will snap the polygon rotation to multiples of the snapAngle. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.snapToggle" >snapToggle</a></td><td class=SDescription>{String} If set, snapToggle is checked on mouse events and will set the snap mode to the opposite of what it currently is. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.persist" >persist</a></td><td class=SDescription>{Boolean} Leave the feature rendered until clear is called. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.irregular" >irregular</a></td><td class=SDescription>{Boolean} Draw an irregular polygon instead of a regular polygon. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.angle" >angle</a></td><td class=SDescription>{Float} The angle from the origin (mouse down) to the current mouse position, in radians. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.fixedRadius" >fixedRadius</a></td><td class=SDescription>{Boolean} The polygon has a fixed radius. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.feature" >feature</a></td><td class=SDescription>{<a href="../Feature/Vector-js.html#OpenLayers.Feature.Vector" class=LClass id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">OpenLayers.Feature.Vector</a>} The currently drawn polygon feature</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.layer" >layer</a></td><td class=SDescription>{<a href="../Layer/Vector-js.html#OpenLayers.Layer.Vector" class=LClass id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">OpenLayers.Layer.Vector</a>} The temporary drawing layer</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.origin" >origin</a></td><td class=SDescription>{<a href="../Geometry/Point-js.html#OpenLayers.Geometry.Point" class=LClass id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">OpenLayers.Geometry.Point</a>} Location of the first mouse down</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.Constructor" >Constructor</a></td><td class=SDescription></td></tr><tr class="SConstructor SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.OpenLayers.Handler.RegularPolygon" >OpenLayers.<wbr>Handler.<wbr>RegularPolygon</a></td><td class=SDescription>Create a new regular polygon handler.</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.setOptions" id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">setOptions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.activate" id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">activate</a></td><td class=SDescription>Turn on the handler.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.deactivate" id=link6 onMouseOver="ShowTip(event, 'tt6', 'link6')" onMouseOut="HideTip('tt6')">deactivate</a></td><td class=SDescription>Turn off the handler.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.down" id=link7 onMouseOver="ShowTip(event, 'tt7', 'link7')" onMouseOut="HideTip('tt7')">down</a></td><td class=SDescription>Start drawing a new feature</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.move" id=link8 onMouseOver="ShowTip(event, 'tt8', 'link8')" onMouseOut="HideTip('tt8')">move</a></td><td class=SDescription>Respond to drag move events</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.up" id=link9 onMouseOver="ShowTip(event, 'tt9', 'link9')" onMouseOut="HideTip('tt9')">up</a></td><td class=SDescription>Finish drawing the feature</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.out" id=link10 onMouseOver="ShowTip(event, 'tt10', 'link10')" onMouseOut="HideTip('tt10')">out</a></td><td class=SDescription>Finish drawing the feature.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.createGeometry" id=link11 onMouseOver="ShowTip(event, 'tt11', 'link11')" onMouseOut="HideTip('tt11')">createGeometry</a></td><td class=SDescription>Create the new polygon geometry. </td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.modifyGeometry" id=link12 onMouseOver="ShowTip(event, 'tt12', 'link12')" onMouseOut="HideTip('tt12')">modifyGeometry</a></td><td class=SDescription>Modify the polygon geometry in place.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.calculateAngle" id=link13 onMouseOver="ShowTip(event, 'tt13', 'link13')" onMouseOut="HideTip('tt13')">calculateAngle</a></td><td class=SDescription>Calculate the angle based on settings.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.cancel" id=link14 onMouseOver="ShowTip(event, 'tt14', 'link14')" onMouseOut="HideTip('tt14')">cancel</a></td><td class=SDescription>Finish the geometry and call the “cancel” callback.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.finalize" id=link15 onMouseOver="ShowTip(event, 'tt15', 'link15')" onMouseOut="HideTip('tt15')">finalize</a></td><td class=SDescription>Finish the geometry and call the “done” callback.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.clear" id=link16 onMouseOver="ShowTip(event, 'tt16', 'link16')" onMouseOut="HideTip('tt16')">clear</a></td><td class=SDescription>Clear any rendered features on the temporary layer. </td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Handler.RegularPolygon.callback" id=link17 onMouseOver="ShowTip(event, 'tt17', 'link17')" onMouseOut="HideTip('tt17')">callback</a></td><td class=SDescription>Trigger the control’s named callback with the given arguments</td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>
16 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.Properties"></a>Properties</h3></div></div>
18 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.sides"></a>sides</h3><div class=CBody><p>{Integer} Number of sides for the regular polygon. Needs to be greater than 2. Defaults to 4.</p></div></div></div>
20 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.radius"></a>radius</h3><div class=CBody><p>{Float} Optional radius in map units of the regular polygon. If this is set to some non-zero value, a polygon with a fixed radius will be drawn and dragged with mose movements. If this property is not set, dragging changes the radius of the polygon. Set to null by default.</p></div></div></div>
22 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.snapAngle"></a>snapAngle</h3><div class=CBody><p>{Float} If set to a non-zero value, the handler will snap the polygon rotation to multiples of the snapAngle. Value is an angle measured in degrees counterclockwise from the positive x-axis.</p></div></div></div>
24 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.snapToggle"></a>snapToggle</h3><div class=CBody><p>{String} If set, snapToggle is checked on mouse events and will set the snap mode to the opposite of what it currently is. To disallow toggling between snap and non-snap mode, set freehandToggle to null. Acceptable toggle values are ‘shiftKey’, ‘ctrlKey’, and ‘altKey’. Snap mode is only possible if this.snapAngle is set to a non-zero value.</p></div></div></div>
26 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.persist"></a>persist</h3><div class=CBody><p>{Boolean} Leave the feature rendered until clear is called. Default is false. If set to true, the feature remains rendered until clear is called, typically by deactivating the handler or starting another drawing.</p></div></div></div>
28 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.irregular"></a>irregular</h3><div class=CBody><p>{Boolean} Draw an irregular polygon instead of a regular polygon. Default is false. If true, the initial mouse down will represent one corner of the polygon bounds and with each mouse movement, the polygon will be stretched so the opposite corner of its bounds follows the mouse position. This property takes precedence over the radius property. If set to true, the radius property will be ignored.</p></div></div></div>
30 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.angle"></a>angle</h3><div class=CBody><p>{Float} The angle from the origin (mouse down) to the current mouse position, in radians. This is measured counterclockwise from the positive x-axis.</p></div></div></div>
32 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.fixedRadius"></a>fixedRadius</h3><div class=CBody><p>{Boolean} The polygon has a fixed radius. True if a radius is set before drawing begins. False otherwise.</p></div></div></div>
34 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.feature"></a>feature</h3><div class=CBody><p>{<a href="../Feature/Vector-js.html#OpenLayers.Feature.Vector" class=LClass id=link20 onMouseOver="ShowTip(event, 'tt1', 'link20')" onMouseOut="HideTip('tt1')">OpenLayers.Feature.Vector</a>} The currently drawn polygon feature</p></div></div></div>
36 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.layer"></a>layer</h3><div class=CBody><p>{<a href="../Layer/Vector-js.html#OpenLayers.Layer.Vector" class=LClass id=link21 onMouseOver="ShowTip(event, 'tt2', 'link21')" onMouseOut="HideTip('tt2')">OpenLayers.Layer.Vector</a>} The temporary drawing layer</p></div></div></div>
38 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.origin"></a>origin</h3><div class=CBody><p>{<a href="../Geometry/Point-js.html#OpenLayers.Geometry.Point" class=LClass id=link22 onMouseOver="ShowTip(event, 'tt3', 'link22')" onMouseOut="HideTip('tt3')">OpenLayers.Geometry.Point</a>} Location of the first mouse down</p></div></div></div>
40 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.Constructor"></a>Constructor</h3></div></div>
42 <div class="CConstructor"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.OpenLayers.Handler.RegularPolygon"></a>OpenLayers.<wbr>Handler.<wbr>RegularPolygon</h3><div class=CBody><p>Create a new regular polygon handler.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>control</td><td class=CDLDescription>{<a href="../Control-js.html#OpenLayers.Control" class=LClass id=link23 onMouseOver="ShowTip(event, 'tt20', 'link23')" onMouseOut="HideTip('tt20')">OpenLayers.Control</a>} The control that owns this handler</td></tr><tr><td class=CDLEntry>callbacks</td><td class=CDLDescription>{Object} An object with a properties whose values are functions. Various callbacks described below.</td></tr><tr><td class=CDLEntry>options</td><td class=CDLDescription>{Object} An object with properties to be set on the handler. If the options.sides property is not specified, the number of sides will default to 4.</td></tr></table><h4 class=CHeading>Named callbacks</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>create</td><td class=CDLDescription>Called when a sketch is first created. Callback called with the creation point geometry and sketch feature.</td></tr><tr><td class=CDLEntry>done</td><td class=CDLDescription>Called when the sketch drawing is finished. The callback will recieve a single argument, the sketch geometry.</td></tr><tr><td class=CDLEntry>cancel</td><td class=CDLDescription>Called when the handler is deactivated while drawing. The cancel callback will receive a geometry.</td></tr></table></div></div></div>
44 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.Functions"></a>Functions</h3></div></div>
46 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.setOptions"></a>setOptions</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>setOptions: function (</td><td class=PParameter nowrap>newOptions</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>newOptions</td><td class=CDLDescription>{Object}</td></tr></table></div></div></div>
48 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.activate"></a>activate</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>activate: function()</td></tr></table></blockquote><p>Turn on the handler.</p><h4 class=CHeading>Return</h4><p>{Boolean} The handler was successfully activated</p></div></div></div>
50 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.deactivate"></a>deactivate</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>deactivate: function()</td></tr></table></blockquote><p>Turn off the handler.</p><h4 class=CHeading>Return</h4><p>{Boolean} The handler was successfully deactivated</p></div></div></div>
52 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.down"></a>down</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>down: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Start drawing a new feature</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>evt</td><td class=CDLDescription>{Event} The drag start event</td></tr></table></div></div></div>
54 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.move"></a>move</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>move: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Respond to drag move events</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>evt</td><td class=CDLDescription>{Evt} The move event</td></tr></table></div></div></div>
56 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.up"></a>up</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>up: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Finish drawing the feature</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>evt</td><td class=CDLDescription>{Event} The mouse up event</td></tr></table></div></div></div>
58 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.out"></a>out</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>out: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Finish drawing the feature.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>evt</td><td class=CDLDescription>{Event} The mouse out event</td></tr></table></div></div></div>
60 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.createGeometry"></a>createGeometry</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>createGeometry: function()</td></tr></table></blockquote><p>Create the new polygon geometry. This is called at the start of the drag and at any point during the drag if the number of sides changes.</p></div></div></div>
62 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.modifyGeometry"></a>modifyGeometry</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>modifyGeometry: function()</td></tr></table></blockquote><p>Modify the polygon geometry in place.</p></div></div></div>
64 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.calculateAngle"></a>calculateAngle</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>calculateAngle: function(</td><td class=PParameter nowrap>point,</td></tr><tr><td></td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Calculate the angle based on settings.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>point</td><td class=CDLDescription>{<a href="../Geometry/Point-js.html#OpenLayers.Geometry.Point" class=LClass id=link24 onMouseOver="ShowTip(event, 'tt3', 'link24')" onMouseOut="HideTip('tt3')">OpenLayers.Geometry.Point</a>}</td></tr><tr><td class=CDLEntry>evt</td><td class=CDLDescription>{Event}</td></tr></table></div></div></div>
66 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.cancel"></a>cancel</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>cancel: function()</td></tr></table></blockquote><p>Finish the geometry and call the “cancel” callback.</p></div></div></div>
68 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.finalize"></a>finalize</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>finalize: function()</td></tr></table></blockquote><p>Finish the geometry and call the “done” callback.</p></div></div></div>
70 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.clear"></a>clear</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>clear: function()</td></tr></table></blockquote><p>Clear any rendered features on the temporary layer. This is called when the handler is deactivated, canceled, or done (unless persist is true).</p></div></div></div>
72 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Handler.RegularPolygon.callback"></a>callback</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>callback: function (</td><td class=PParameter nowrap>name,</td></tr><tr><td></td><td class=PParameter nowrap>args</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Trigger the control’s named callback with the given arguments</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>name</td><td class=CDLDescription>{String} The key for the callback that is one of the properties of the handler’s callbacks object.</td></tr><tr><td class=CDLEntry>args</td><td class=CDLDescription>{Array} An array of arguments with which to call the callback (defined by the control).</td></tr></table></div></div></div>
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87 <!--START_ND_TOOLTIPS-->
88 <div class=CToolTip id="tt1"><div class=CClass>Vector features use the OpenLayers.Geometry classes as geometry description. </div></div><div class=CToolTip id="tt2"><div class=CClass>Instances of OpenLayers.Layer.Vector are used to render vector data from a variety of sources. </div></div><div class=CToolTip id="tt3"><div class=CClass>Point geometry class.</div></div><div class=CToolTip id="tt4"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>setOptions: function (</td><td class=PParameter nowrap>newOptions</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote></div></div><div class=CToolTip id="tt5"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>activate: function()</td></tr></table></blockquote>Turn on the handler.</div></div><div class=CToolTip id="tt6"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>deactivate: function()</td></tr></table></blockquote>Turn off the handler.</div></div><div class=CToolTip id="tt7"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>down: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Start drawing a new feature</div></div><div class=CToolTip id="tt8"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>move: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Respond to drag move events</div></div><div class=CToolTip id="tt9"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>up: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Finish drawing the feature</div></div><div class=CToolTip id="tt10"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>out: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Finish drawing the feature.</div></div><div class=CToolTip id="tt11"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>createGeometry: function()</td></tr></table></blockquote>Create the new polygon geometry. </div></div><div class=CToolTip id="tt12"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>modifyGeometry: function()</td></tr></table></blockquote>Modify the polygon geometry in place.</div></div><div class=CToolTip id="tt13"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>calculateAngle: function(</td><td class=PParameter nowrap>point,</td></tr><tr><td></td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Calculate the angle based on settings.</div></div><div class=CToolTip id="tt14"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>cancel: function()</td></tr></table></blockquote>Finish the geometry and call the “cancel” callback.</div></div><div class=CToolTip id="tt15"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>finalize: function()</td></tr></table></blockquote>Finish the geometry and call the “done” callback.</div></div><div class=CToolTip id="tt16"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>clear: function()</td></tr></table></blockquote>Clear any rendered features on the temporary layer. </div></div><div class=CToolTip id="tt17"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>callback: function (</td><td class=PParameter nowrap>name,</td></tr><tr><td></td><td class=PParameter nowrap>args</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Trigger the control’s named callback with the given arguments</div></div><div class=CToolTip id="tt18"><div class=CConstructor>Create a new regular polygon handler.</div></div><div class=CToolTip id="tt19"><div class=CClass>Base class to construct a higher-level handler for event sequences. </div></div><div class=CToolTip id="tt20"><div class=CClass>Controls affect the display or behavior of the map. </div></div><!--END_ND_TOOLTIPS-->
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